Results 21 to 30 of about 936,493 (270)

High-Speed THz Time-of-Flight Imaging with Reflective Optics

Sensors, 2023
In this study, we develop a 3D THz time-of-flight (TOF) imaging technique by using reflective optics to preserve the high-frequency components from a THz antenna. We use an Fe:InGaAs/InAlAs emitter containing relatively high-frequency components. THz-TOF
Hoseong Yoo, Jangsun Kim, Yeong Hwan Ahn
doaj   +1 more source

Sub-nanosecond signal propagation in anisotropy engineered nanomagnetic logic chains [PDF]

, 2014
Energy efficient nanomagnetic logic (NML) computing architectures propagate and process binary information by relying on dipolar field coupling to reorient closely-spaced nanoscale magnets. Signal propagation in nanomagnet chains of various sizes, shapes,
Alam, Mohmmad T., Bennett, Patrick, Bokor, Jeffrey, Carlton, David B., Chao, Weilun, Doran, Andrew, Fischer, Peter, Gu, Zheng, Hong, Jeongmin, Im, Mi-Young, Lambson, Brian, Marcus, Matthew A., Nowakowski, Mark E., Scholl, Andreas, Storz, Ralph, Young, Anthony   +15 more
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High speed multiphoton imaging [PDF]

SPIE Proceedings, 2016
Intravital multiphoton microscopy has emerged as a powerful technique to visualize cellular processes in-vivo. Real time processes revealed through live imaging provided many opportunities to capture cellular activities in living animals. The typical parameters that determine the performance of multiphoton microscopy are speed, field of view, 3D ...
Yongxiao Li, Anne Brustle, Vini Gautam, Ian Cockburn, Cathy Gillespie, Katharina Gaus, Woei Ming Lee   +6 more
openaire   +1 more source

High-speed ghost imaging by an unpredictable optical phased array

Frontiers in Physics, 2022
Ghost imaging (GI) retrieves an image from the correlation between a sequence of illumination patterns on the object and their corresponding bucket detections.
Xuyang Sun, Hui Chen, Bingni Qiu, Gao Wang, Wanting Xu, Sheng Luo, Yuan Yuan, Bing Chen, Huaibin Zheng, Yuchen He, Zhuo Xu   +10 more
doaj   +1 more source

4D STEM: high efficiency phase contrast imaging using a fast pixelated detector [PDF]

, 2015
Phase contrast imaging is widely used for imaging beam sensitive and weak phase objects in electron microscopy. In this work we demonstrate the achievement of high efficient phase contrast imaging in STEM using the pnCCD, a fast direct electron pixelated
Banba, H, Jones, L, Kondo, Y, MacLaren, I., Nellist, P D, Ryll, H, Sagawa, R, Simson, M, Soltau, H, Yang, H   +9 more
core   +1 more source

In vivo volumetric imaging of human retinal circulation with phase-variance optical coherence tomography [PDF]

, 2011
We present in vivo volumetric images of human retinal micro-circulation using Fourier-domain optical coherence tomography (Fd-OCT) with the phase-variance based motion contrast method.
An, An, Bachmann, Chen, Fercher, Fingler, Fingler, Fingler, Huang, Izatt, Kim, Leitgeb, Makita, Makita, Makita, Mariampillai, Musa, Nassif, Schmoll, Szkulmowska, Szkulmowski, Tao, Vakoc, Wang, White, Wojtkowski, Wojtkowski, Yang, Yu, Zawadzki, Zotter   +30 more
core   +2 more sources

Compressive high-speed stereo imaging

Optics Express, 2017
A compressive high-speed stereo imaging system is reported. The system is capable of reconstructing 3D videos at a frame rate 10 times higher than the sampling rate of the imaging sensors. An asymmetric configuration of stereo imaging system has been implemented by including a high-speed spatial modulator in one of the binocular views, and leaving the ...
Sun, Yangyang, Yuan, Xin, Pang, Shuo
openaire   +3 more sources

High-speed imaging polarimetry using liquid crystal modulators

EPJ Web of Conferences, 2010
This paper deals with dynamic polarimetric imaging techniques. The basics of modern polarimetry have been known for one and a half century, but no practical high-speed implementation providing the full polarization information is currently available ...
Ambs P., Gendre L., Jaulin A., Foulonneau A., Bigué L.   +4 more
doaj   +1 more source

The Influence of Diethylaniline and Toluene on the Streamer Propagation in Cyclohexane between a Point-Plane Gap under Positive Impulse Voltage Stress

Energies, 2022
Liquid insulation is used in high voltage equipment such as power transformers as both dielectric medium and coolant. Breakdown in liquid insulation tends to be governed either by streamer initiation under more uniform fields, or by streamer propagation ...
Carl P. Wolmarans, Cuthbert Nyamupangedengu, Carina Schumann, Neil J. Coville, Marcelo M. F. Saba   +4 more
doaj   +1 more source

Development of EM-CCD-based X-ray detector for synchrotron applications [PDF]

, 2014
A high speed, low noise camera system for crystallography and X-ray imaging applications is developed and successfully demonstrated. By coupling an electron-multiplying (EM)-CCD to a 3:1 fibre-optic taper and a CsI(Tl) scintillator, it was possible to ...
A. Warren, A.D. Holland, A.M. Evagora, D.J. Hall, Hall D., Hall D., Hall D., J.H. Tutt, Janesick J., Jerram P., Lutz G., M.R. Soman, Soman M., T. Connolley, Tutt J.   +14 more
core   +1 more source